WEISRE DM-3308A Professional VHF Wireless Handheld Dual Channel Transmitter Microphone

Features: Double channels design, can use two handheld wireless microphones without interference at the same time. High precision quartz crystal to lock the frequency. High sensitivity and high S/N ratio, high fidelity without noise. Superior selectivity, multi-channel can use at the same time, do not interfere with each other. Suitable for studio / karaoke / radio / etc. Ideal environment for using distance is up to 50 meters, complex environment and practical distance is 30 40 meters. Specifications: Carrier frequency range: 220 - 270MHz Frequency response range: 60Hz - 16KHz Harmonic interference: more than 90dB Radio frequency stability: plus or minus 0.005 percent S/N ratio: more than 90dB Output intensity: 0 400mv Harmonic distortion: less than 0.5 percent Microphone is powered by 2 x AAA battery ( not included ) Microphone dimension: 260mm x 30mm x 30mm Receiver dimension: 110mm x 45mm x 15mm Pacakage Included:1 x Microphone 1 x Receiver1 x User Manual